Used successfully in the USB slop on my car radio.
I am not aware I am doing anything differently but recently I have tried to record internet radio to refresh the flash drive (new music).
Radio on , program selected, flash drive in. At this point I recall that some instruction or text appeared in the window. Anyhow this re-formatted FAT32 flash drive carries no trace of a MPS file. It does mention record and my name but no music. The handbook is a little vague for me but I cannot see what I am doing wrong and can find no switch the offers a different or a choice of settings in the Robers.